Pin Descriptions - Holtek HT66F488 Manual

Pin Descriptions

Pin Name Function
PA�
PA�/OCDSDA/
SSEG6 OCDSDA
SSEG6 SLCDC2
PA1
PA1/SSEG�
SSEG� SLCDC2
PA2
PA2/OCDSCK/
SSEG8 OCDSCK
SSEG8 SLCDC2
PA3
PA3/SDO/SSEG�
SDO
SSEG� SLCDC2
PA4
PA4/SDI/SDA/
SDI
SSEG1�
SDA
SSEG1� SLCDC2
PA5
PTP1
PA5/PTP1/SCK/
SCL/SSEG11 SCK
SCL
SSEG11 SLCDC2
PA6
PA6/PTCK1/SCS/
PTCK1
SSEG12
SCS
SSEG12 SLCDC2
PA�
PA�/CTCK/
SSEG13 CTCK
SSEG13 SLCDC2
PB�
PTP�
PB�/PTP�/I�T4/
SSEG18
I�T4
SSEG18 SLCDC3
PB1
PTCK�
PB1/PTCK�/
I�T1/A��/ I�T1
SSEG1�
A��
SSEG1� SLCDC3
PB2
CTP
PB2/CTP/I�T�/
SSEG16
I�T�
SSEG16 SLCDC3
Rev. 1.21
OPT I/T O/T
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— ST CMOS OCDS Data/Add�ess pin� fo� EV chip only
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— ST — OCDS Clock pin� fo� EV chip only.
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— — CMOS SPI Data output
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— ST — SPI Data input
— ST �MOS I C Data
2
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
TMPC� ST CMOS PTM1 input/output
— ST CMOS SPI Se�ial Clock
— ST �MOS I C Clock
2
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— ST — PTM1 input
— ST CMOS SPI slave� selection
— CMOS Softwa�e LCD SEG output
PAWU
ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up and wake-up
PAPU
— ST — CTM input
— CMOS Softwa�e LCD SEG output
PBPU ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up.
TMPC� ST CMOS PTM� output
— ST — Exte�nal inte��upt input
— CMOS Softwa�e LCD SEG output
PBPU ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up.
— ST — PTM� input
— ST — Exte�nal inte��upt input
ACERL A� — ADC input
— CMOS Softwa�e LCD SEG output
PBPU ST CMOS Gene�al pu�pose I/O. Registe� ena�le pull-up.
TMPC� ST CMOS CTM output
— ST — Exte�nal inte��upt input
— CMOS Softwa�e LCD SEG output
1�
HT66F488/HT66F489
A/D Flash MCU with EEPROM
Description
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